Eureka!
I finally figured out why I detest that trite saying "I may not know anything about art but I know what I like."  A few weeks ago I was with my parents as they went to an art exhibit. And then my dad had to say that. I cringed. The person who uses that phrase proudly admits that they don't know anything about art; they are claiming ignorance.  And then in the very same breath, they are announcing to the world that in their ignorance, they like what they're seeing.  Please...never, ever make a value judgement on something while at the same time tell a person you don't know enough to make that very judgement.

I'm glad I got that cleared up in my head.